[HD-OCP17/21-Fundamentals Pg 0, Sec. 16.2.2 - using-lower-bounded-wildcard]
Posted: Sun Jan 12, 2025 11:15 am
Hello,
In the code example:
Shoudn't it be:
Thanks!
In the code example:
Code: Select all
void loadValuesFromDB(List<? super Number> targetList){
//for(Number value : targetList){ ... }//will not compile
//values.add("hello"); //will not compile
values.add(1.0); //fine
}
Code: Select all
void loadValuesFromDB(List<? super Number> targetList){
//for(Number value : targetList){ ... }//will not compile
//targetList.add("hello"); //will not compile
targetList.add(1.0); //fine
}